Using these Addi Turbo circular needles is easy. Just thread your yarn through the needle, and start knitting as you normally would. The smooth nickel coating helps the yarn slide easily, so you can work faster. When using the needles, be aware of the non - standard sizing for some of the smaller sizes, as described in the product details. To maintain your needles, keep them clean and dry. You can use a soft cloth to wipe them down after each use. Avoid bending the cords too harshly to prevent damage. Store them in a cool, dry place, away from sharp objects that could scratch the coating.